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Title:
Continuous cutter for a glass fiber chopper
Abstract:
A continuous cutter ring or hoop having relatively thick, large-angle chisel teeth to bend and break attenuated glass fibers in a glass fiber chopping assembly is disclosed. The continuous cutter is an annular ring or hoop of steel or other hard material which is formed having an outer circumference provided with integral, regularly spaced, raised cutting teeth. The continuous cutter is secured on a suitable cutter wheel which cooperates with a second wheel having an elastomer cot around its circumference with the glass fibers to be severed passing between the continuous cutter and the elastomer cot. The cutter teeth are generally chisel-shaped and sever the glass fiber strand without cutting or destroying the elastomer cot. The integrally formed cutter teeth will not separate from the cutter ring and are not subject to being misaligned.
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Inventors:
Gay, Benjamin A. (Huntington Beach, CA)
Application Number:
06/223563
Filing Date: 1981-01-08 Publication_date: 1983-02-15 Assignee:
PPG INDUSTRIES INC
Primary Class(es):
225/97
83/663, 83/347, 83/913, 225/103
Other Classes:
D01G1/04; D01G15/88; D01G1/00; D01G15/00; D01G1/04
US Patent Ref:
| 1152030 | August, 1915 | Blond et al. | 409/236 | | | 1354828 | October, 1920 | Harvey | 407/52 | Revolving tool | | 1511054 | October, 1924 | Duncan | 83/346 | Machine for cutting sheet material | | 2247529 | July, 1941 | Taylor et al. | 83/913 | Production from continuous filaments of yarns exhibiting the characteristics of staple fiber yarns | | 2265649 | December, 1941 | Krehbiel | 83/663 | Rotary knife | | 3151513 | October, 1964 | Rowlands | 83/346 | Cutting apparatus | | 3324753 | June, 1967 | Lindau | 83/672 | Cutter apparatus | | 3508461 | April, 1970 | Stream | 83/344 | CHOPPER FOR GLASS STRANDS | | 3644109 | February, 1972 | Klink et al. | 65/11 | APPARATUS FOR SEVERING LINEAR MATERIAL | | 3731575 | May, 1973 | Gelin | 83/344 | CHOPPER FOR LINEAR MATERIAL | | 3771981 | November, 1973 | Sears et al. | 65/9 | APPARATUS FOR SEVERING AND DEPOSITING GLASS FIBERS | | 3873290 | March, 1975 | Marzocchi | 65/2 | METHOD OF PRODUCING DISCONTINUOUS LENGTHS OF DISPERSED FILAMENT STRAND | | 3892157 | July, 1975 | Currie et al. | 83/346 | Slitting roll | | 3899955 | August, 1975 | Selch | 407/52 | Machine tool construction | | 3908232 | September, 1975 | Okayama | 83/913 | Tow converter | | 4163653 | August, 1979 | Symborski et al. | 65/2 | Method and apparatus for forming and collecting discrete fibers and/or strands |
Other Refs:
Primary Examiner:
Meister, James M.
Assistant Examiner:
Attorney:
Curley, John E.
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